"The contest between man and machine on Jeopardy! was decided when IBM’s
Watson computer landed on the second Daily Double on day three. The
clue was: “This two-word phrase means the power to take private property
for public use as long as there is just compensation.” Watson’s
response: “What is eminent domain?”" http://asmarterplanet.com/blog/2011/02/watson-on-jeopardy-day-three-what-we-learned-about-how-watson-thinks.html